Features: brand new and high quality Infrared induction, the size of the bobbin can be adjusted at will. Very durable and practical, it is a good helper for you to complete the sewing work. High speed and high efficiency, this winding machine can save a lot of for time when you need to complete large projects quickly. The spool holder and base plate can be installed on the desktop, or you can place the portable automatic bobbin winder wherever you need it. Suitable for most household and industrial sewing machines. Specifications: Material: Plastic Size: Approx. 15x8x9 for cm/5.90x3.15x3.54 in Power:90-260 V Voltage:20 for W Rotating Speed:4500 rpm Package Includes: 1x Automatic Bobbin Winder note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.